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EntityQ4907611· pop 6· linked from 145 articles

Also known as NSA call database

MAINWAY is a database maintained by the United States' National Security Agency (NSA) containing metadata for hundreds of billions of telephone calls made through the largest telephone carriers in the United States, including AT&T, Verizon, and T-Mobile.

~23 min read

Article

21 sections
Contents
  • Content
  • Usage
  • Response
  • Internet monitoring
  • ''Wired'' magazine
  • Partial retraction
  • Denials
  • Lawsuits
  • Claims
  • Justice Department response
  • Legal status
  • Stored Communications Act
  • Communications Assistance for Law Enforcement Act
  • Historical background
  • Legality
  • Political action
  • Polls
  • Qwest Communications
  • See also
  • References
  • External links

MAINWAY is a database maintained by the United States' National Security Agency (NSA) containing metadata for hundreds of billions of telephone calls made through the largest telephone carriers in the United States, including AT&T, Verizon, and T-Mobile.

The existence of this database and the NSA program that compiled it was unknown to the general public until USA Today broke the story on May 10, 2006.

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